EP1453119A1 - Electrochemical generator with monobloc connector - Google Patents

Electrochemical generator with monobloc connector Download PDF

Info

Publication number
EP1453119A1
EP1453119A1 EP03292850A EP03292850A EP1453119A1 EP 1453119 A1 EP1453119 A1 EP 1453119A1 EP 03292850 A EP03292850 A EP 03292850A EP 03292850 A EP03292850 A EP 03292850A EP 1453119 A1 EP1453119 A1 EP 1453119A1
Authority
EP
European Patent Office
Prior art keywords
generator according
layer
propylene
ethylene
homopolymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03292850A
Other languages
German (de)
French (fr)
Other versions
EP1453119B1 (en
Inventor
Georges Caillon
Céline Résidence Le Laurence Lenhof
Mélanie Redois
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saft Finance SARL
Original Assignee
Alcatel CIT SA
Alcatel SA
Saft Finance SARL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel CIT SA, Alcatel SA, Saft Finance SARL filed Critical Alcatel CIT SA
Publication of EP1453119A1 publication Critical patent/EP1453119A1/en
Application granted granted Critical
Publication of EP1453119B1 publication Critical patent/EP1453119B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/40—Printed batteries, e.g. thin film batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to the field of generators or elements electrochemicals used to supply components and / or circuits e.
  • Such generators generally include a main part in which a negative electrode and a positive electrode, substantially parallel to each other, separated from one the other by a non-aqueous electrolyte. These electrodes are respectively connected to remote negative and positive connection terminals, making protruding from the main part is on the same side as is the case in patent document EP-0 852 404, either on opposite sides as this is the case of the product marketed under the registered trademark "LITE * STAR".
  • the object of the invention is therefore to remedy all or part of the aforementioned drawbacks.
  • connection terminals are placed on either side of a layer of electrical insulation and define therewith a connection tab monobloc, which passes through the packaging means so as to project at least partly outward.
  • the electrodes each have a current collector, comprising a first part defining a connection terminal and extended by a second part provided with an active material, the terminals of connection being placed on either side of an insulation layer electric to form a one-piece connection lug.
  • the two connection terminals are mounted on a single support while remaining perfectly electrically insulated, and their solidity is largely strengthened.
  • this significantly reduces the size of the electrochemical generator, while improving its sealing.
  • an auxiliary insulation layer is interposed between said means and the connection lug.
  • Such an auxiliary layer can be for example made of a material consisting of at least one polymer chosen from an acrylic or maleic polymer and a polyolefin such as in particular a homopolymer of ethylene or propylene, a copolymer ethylene and propylene or a mixture thereof.
  • the electrical insulation layer can optionally be consisting of two sub-layers and it is preferably produced in a material consisting of at least one polymer chosen from a polymer acrylic or maleic and a polyolefin such as in particular a homopolymer of ethylene or propylene, a copolymer of ethylene and propylene or a mixture thereof.
  • the packaging means consist of a multilayer structure comprising at least one support layer, for example aluminum, provided with a first face secured to an external protective layer, for example consisting of a material such as acrylic varnish or polyethylene terephthalate (or PET).
  • This multilayer structure can also include an internal layer, secured to a second face of the support layer, and for example made of a material consisting of at least one polymer chosen from a polyolefin such as in particular a homopolymer of ethylene or of propylene, a copolymer of ethylene and propylene or a mixture of these, or even an acrylic polymer.
  • the packaging means may possibly be flexible from so that the electrochemical generator can be installed on a equipment susceptible to stresses such as bending or bidirectional twists.
  • every second part is secured to an active material suitable for being impregnated with a non-aqueous electrolyte carried, for example, by a membrane housed in the envelope.
  • the invention also relates to a battery comprising at least an electrochemical generator of the type presented above.
  • the invention is particularly well suited to supplying components) and / or electronic circuit (s), in particular when they are (is) installed on a smart card.
  • FIGS 1 and 2 is illustrated an exemplary embodiment a battery 1 equipped with a single electrochemical generator according to the invention. Consequently, in what follows we will assimilate battery 1 to its electrochemical generator. Of course, the battery 1 could include several electrochemical cells mounted in series or in parallel.
  • the battery 1 has a main part 2 of rectangular shape, adapted to its integration in a smart card-type equipment, and from which protrudes a tab of monobloc connection 3.
  • the length, width and thickness of the main part 2 are respectively of the order of 35mm, 20mm and 0.5mm.
  • main part 2 can take many other forms and dimensions according to the location of the battery 1.
  • the main part 2 of the battery 1 comprises packaging means 4 which constitute a envelope defining an internal space 5.
  • This envelope 4 is of preferably produced in the form of a multilayer structure comprising at least one support layer 6 of which a first (external) face is secured to an external protective layer 7.
  • the support layer 6 is produced in a strip aluminum and the outer layer 7 is an acrylic varnish or polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the envelope 4 may also include a internal layer 8 secured to a second (internal) face of the layer of support 6.
  • This internal layer 8 is for example made of a material which is at least one polymer chosen from a polyolefin such as in particular a homopolymer of ethylene or propylene, a copolymer ethylene and propylene or a mixture thereof, or even a acrylic polymer. It may in particular be polypropylene, polyethylene or a copolymer of ethylene and propylene.
  • the aforementioned materials, which constitute the envelope 4 are suitable for the example of using battery 1, which requires flexibility (or flexibility). Consequently, they are in no way limiting and may differ, radically, as needed.
  • the negative electrode 9 consists of a metal plate 11 defining a current collector comprising a first part 12, defining a connection terminal 13, extended by a second part 14 secured to an active material 15.
  • the metal plate 11 is made of copper.
  • the positive electrode 10 consists of a plate metallic 16 defining a current collector comprising a first part 17, defining a connection terminal 18, extended by a second part 19 secured to an active material 20.
  • the plate metal 16 is made of aluminum.
  • the active material 15, housed in the internal part 5 of the casing 4 and secured to the second part 14 of the negative electrode 9, is a paste containing a carbon material capable of inserting lithium atoms, such as LiC 6
  • the active material 20, housed in the internal part 5 of the envelope 4 and secured to the second part 19 of the positive electrode 10 is a paste containing a metal oxide comprising lithium atoms, such as LiCoO 2 .
  • the envelope 4 also houses in its internal part 5 a membrane 21 separating the active materials 15 and 20 and placed in contact with them so as to supply them with electrolyte.
  • the membrane 21 is provided with an electrolyte consisting of a lithium salt, such as LiPF 6 , in solution in an organic solvent.
  • Li-ion lithium-ion
  • the electrochemical generator 1 also has a layer of electrical insulation 22 comprising two external faces, here substantially parallel to each other, and to which are respectively secured the portions of the first parts 12 and 17, of the negative 9 and positive electrodes 10, which define the negative 13 and positive 18 connection terminals.
  • the insulating layer 22 can optionally consist of two sub-layers 22A and 22B.
  • the insulation layer 22 (or the sublayers 22A and 22B) is (are) made of a material made of at least one polymer chosen from an acrylic or maleic polymer and a polyolefin such as in particular a homopolymer of ethylene or propylene, a copolymer of ethylene and propylene or a mixture thereof. He will be able to especially be polypropylene, polyethylene or a copolymer ethylene and propylene modified by grafting of carboxylic functions.
  • a "lower” part of this connection lug 3 is housed in the internal part 5 of the casing 4, while a part “Upper” of said connecting tab protrudes from said enclosure 4 so as to allow the connection of the two terminals of connection 13 and 18 to implanted electronic components and / or circuits on equipment.
  • This one-piece constitution significantly strengthens the solidity of two connection terminals and makes it possible to significantly simplify the process for manufacturing the electrochemical generator according to the invention while reducing the alignment constraints of the connection terminals.
  • the having only one crossing of envelope 4 unlike at the two crossings of the generators of the prior art, makes it possible to improve substantially the seal inside this envelope.
  • connection lug 3 has a small lateral extension (defined by the perpendicular direction axis II-II) relative to that of the central part 2.
  • the portion of the first part 12 or 17, which defines a connection terminal 13 or 18, is cut out. But, it could be otherwise if it turns out necessary.
  • the connection terminals 13 and 18 do not protrude from the insulation layer 22. But, one could consider that at least one of the connection terminals 13 and 18 projects locally and very slightly of the insulation layer 22.
  • the connection terminals 13 and 18 have the same longitudinal extension (defined by the direction parallel to the axis II-II). But, it could be otherwise if it proves necessary.
  • one or two auxiliary layers can also be provided of insulation 23 interposed between the casing and the connection tab 3.
  • a a single auxiliary layer 23 may suffice, if it is electrically insulating. In this case it can indeed be produced in the form of a sleeve completely surrounding the connection lug 3 at the crossing.
  • two auxiliary layers are used, it is no longer necessary, that it remains preferable, that they are electrically insulating. In this case, they can for example be in the form of parallelepipeds (or "patches").
  • the auxiliary insulation layer 23 (or both layers) is (are) made of an adhesive material made of at least less a polymer chosen from an acrylic or maleic polymer and a polyolefin such as in particular a homopolymer of ethylene or of propylene, a copolymer of ethylene and propylene or a mixture of them. It may in particular be polypropylene, polyethylene or of a copolymer of ethylene and propylene modified by grafting of carboxylic functions.
  • connection terminals with interposition of an insulating material, it is possible to significantly reduce, typically by a factor of ten, the number of broken connection terminals during the manufacturing and testing phases. This is mainly due to fact that thanks to the invention, the compression forces, but especially the torsional forces, undergone by the superimposed connection terminals, are significantly reduced.
  • a secondary type electrochemical generator has been described. (or rechargeable), for example non-aqueous (Li-ion).
  • the invention is not not limited to this type of electrochemical generator. He could in particular be another type of secondary electrochemical generator with electrolyte non-aqueous and preferably works without internal pressure, or even even a primary electrochemical generator (such as a lithium battery).
  • an electrochemical generator of form has been described. thin parallelepiped.
  • the invention is not limited to this embodiment of an electrochemical generator.
  • a battery has been described comprising a single generator electrochemical. But the battery according to the invention is not limited to this case particular.

Abstract

An electrochemical cell comprises: (i) a negative electrode and a positive electrode, each containing a current collector covered in an active material and provided with an extension defining a connection terminal; and (ii) a packaging device housing the electrodes in leak-tight manner. An electrochemical cell (1) comprises: (i) a negative electrode (9) and a positive electrode (10), each containing a current collector (11,16) covered in an active material (15,20) and provided with an extension defining a connection terminal (13,18); and (ii) packaging device (4) housing the electrodes in leak-tight manner. (13,18) are placed on either side of an electrically insulating layer (22) and co-operate with it to define a single connection tab (3), passing through (4) to project outwards, at least in part.

Description

L'invention concerne le domaine des générateurs ou éléments électrochimiques utilisés pour l'alimentation de composants et/ou circuits électroniques.The invention relates to the field of generators or elements electrochemicals used to supply components and / or circuits e.

De nombreux composants et/ou circuits électroniques ont besoin d'une source de puissance pour pouvoir assurer l'une au moins des fonctions pour lesquelles ils ont été conçus. Afin de permettre leur utilisation dans des équipements autonomes de petites dimensions, tels que certaines cartes à puce (ou « smart cards »), l'homme de l'art a développé des sources de puissance de très petites dimensions. Il a ainsi été proposé des générateurs électrochimiques (ou batteries) extra-plat(e)s, typiquement de l'ordre de 0,5 mm d'épaisseur pour des longueur et largeur de l'ordre de quelques dizaines de mm.Many electronic components and / or circuits require a power source to be able to ensure at least one of the functions for which they were designed. In order to allow their use in small autonomous equipment, such as some smart cards, the skilled person has developed very small power sources. It has thus been proposed extra-flat electrochemical generators (or batteries), typically of around 0.5 mm thick for length and width around a few tens of mm.

De tels générateurs comprennent généralement une partie principale dans laquelle sont logées à étanchéité une électrode négative et une électrode positive, sensiblement parallèles entre-elles, séparées l'une de l'autre par un électrolyte non-aqueux. Ces électrodes sont respectivement raccordées à des bornes de connexion négative et positive distantes, faisant saillie hors de la partie principale soit sur un même côté comme c'est le cas dans le document brevet EP-0 852 404, soit sur des côtés opposés comme c'est le cas du produit commercialisé sous la marque déposée "LITE*STAR".Such generators generally include a main part in which a negative electrode and a positive electrode, substantially parallel to each other, separated from one the other by a non-aqueous electrolyte. These electrodes are respectively connected to remote negative and positive connection terminals, making protruding from the main part is on the same side as is the case in patent document EP-0 852 404, either on opposite sides as this is the case of the product marketed under the registered trademark "LITE * STAR".

Cette séparation physique des bornes de connexion positive et négative permet certes de limiter les risques de court-circuit, mais elle présente les inconvénients suivants :

  • (1) elle complexifie le procédé de fabrication,
  • (2) elle impose des contraintes d'alignement drastiques,
  • (3) elle rend vulnérable chaque borne de connexion,
  • (4) elle augmente l'encombrement de la batterie, et
  • (5) elle nuit à la qualité de l'étanchéité.
    • This physical separation of the positive and negative connection terminals certainly makes it possible to limit the risks of short circuit, but it has the following drawbacks:
  • (1) it complicates the manufacturing process,
  • (2) it imposes drastic alignment constraints,
  • (3) it makes each connection terminal vulnerable,
  • (4) it increases the size of the battery, and
  • (5) it affects the quality of the seal.

    • De plus, certains de ces inconvénients sont renforcés lorsque la batterie doit être flexible, comme c'est notamment le cas de celles qui équipent les cartes à puce.In addition, some of these disadvantages are reinforced when the battery must be flexible, as is particularly the case for those which equip smart cards.

    L'invention a donc pour but de remédier à tout ou partie des inconvénients précités.The object of the invention is therefore to remedy all or part of the aforementioned drawbacks.

    Elle propose à cet effet un générateur électrochimique comprenant, d'une part, une électrode négative et une électrode positive comportant chacune un collecteur de courant recouvert d'un matériau actif et muni d'un prolongement définissant une borne de connexion, et d'autre part, des moyens d'emballage logeant à étanchéité les électrodes. Selon l'invention les bornes de connexion sont placées de part et d'autre d'une couche d'isolation électrique et définissent avec celle-ci une patte de connexion monobloc, qui traverse le moyen d'emballage de manière à saillir au moins en partie vers l'extérieur.To this end, it offers an electrochemical generator comprising, on the one hand, a negative electrode and a positive electrode comprising each a current collector covered with an active material and provided with a extension defining a connection terminal, and on the other hand, packaging means sealing the electrodes. According to the invention the connection terminals are placed on either side of a layer of electrical insulation and define therewith a connection tab monobloc, which passes through the packaging means so as to project at least partly outward.

    Les électrodes comportent chacune un collecteur de courant, comprenant une première partie définissant une borne de connexion et prolongée par une seconde partie munie d'un matériau actif, les bornes de connexion étant placées de part et d'autre d'une couche d'isolation électrique pour constituer une patte de connexion monobloc. De la sorte, les deux bornes de connexion sont montées sur un unique support tout en demeurant parfaitement isolées électriquement, et leur solidité est largement renforcée. De plus cela permet de réduire sensiblement l'encombrement du générateur électrochimique, tout en améliorant son étanchéité. En outre, cela permet de simplifier le procédé de fabrication du générateur électrochimique et ses contraintes d'alignement. Enfin, cela permet de faciliter les opérations de raccordement du générateur électrochimique au(x) composant(s) et/ou circuit(s) électroniques(s) qu'il doit alimenter.The electrodes each have a current collector, comprising a first part defining a connection terminal and extended by a second part provided with an active material, the terminals of connection being placed on either side of an insulation layer electric to form a one-piece connection lug. In this way, the two connection terminals are mounted on a single support while remaining perfectly electrically insulated, and their solidity is largely strengthened. In addition, this significantly reduces the size of the electrochemical generator, while improving its sealing. In addition, this simplifies the generator manufacturing process electrochemical and its alignment constraints. Finally, it allows facilitate the operations of connecting the electrochemical generator to (x) electronic component (s) and / or circuit (s) which it must supply.

    Préférentiellement, dans le but de renforcer l'isolation des bornes de connexion on interpose une couche auxiliaire d'isolation entre lesdits moyens d'emballage et la patte de connexion. Une telle couche auxiliaire peut être par exemple réalisée dans un matériau constitué d'au moins un polymère choisi parmi un polymère acrylique ou maléique et une polyoléfine telle que notamment un homopolymère de l'éthylène ou du propylène, un copolymère d'éthylène et de propylène ou un mélange de ceux-ci.Preferably, in order to reinforce the insulation of the terminals connection an auxiliary insulation layer is interposed between said means and the connection lug. Such an auxiliary layer can be for example made of a material consisting of at least one polymer chosen from an acrylic or maleic polymer and a polyolefin such as in particular a homopolymer of ethylene or propylene, a copolymer ethylene and propylene or a mixture thereof.

    Par ailleurs, la couche d'isolation électrique peut être éventuellement constituée de deux sous-couches et elle est préférentiellement réalisée dans un matériau constitué d'au moins un polymère choisi parmi un polymère acrylique ou maléique et une polyoléfine telle que notamment un homopolymère de l'éthylène ou du propylène, un copolymère d'éthylène et de propylène ou un mélange de ceux-ci.Furthermore, the electrical insulation layer can optionally be consisting of two sub-layers and it is preferably produced in a material consisting of at least one polymer chosen from a polymer acrylic or maleic and a polyolefin such as in particular a homopolymer of ethylene or propylene, a copolymer of ethylene and propylene or a mixture thereof.

    Egalement de préférence, les moyens d'emballage (ou enveloppe) sont constitués d'une structure multicouches comprenant au moins une couche de support, par exemple en aluminium, munie d'une première face solidarisée à une couche externe de protection, par exemple constituée d'un matériau de type vernis acrylique ou en polytéréphtalate d'éthylène (ou PET). Cette structure multicouches peut également comporter une couche interne, solidarisée à une seconde face de la couche de support, et par exemple réalisée dans un matériau constitué d'au moins un polymère choisi parmi une polyoléfine telle que notamment un homopolymère de l'éthylène ou du propylène, un copolymère d'éthylène et de propylène ou un mélange de ceux-ci, voire même un polymère acrylique.Also preferably, the packaging means (or envelope) consist of a multilayer structure comprising at least one support layer, for example aluminum, provided with a first face secured to an external protective layer, for example consisting of a material such as acrylic varnish or polyethylene terephthalate (or PET). This multilayer structure can also include an internal layer, secured to a second face of the support layer, and for example made of a material consisting of at least one polymer chosen from a polyolefin such as in particular a homopolymer of ethylene or of propylene, a copolymer of ethylene and propylene or a mixture of these, or even an acrylic polymer.

    Les moyens d'emballage peuvent être éventuellement flexibles de sorte que le générateur électrochimique puisse être implanté sur un équipement susceptible de subir des contraintes telles que des flexions ou torsions bidirectionnelles.The packaging means may possibly be flexible from so that the electrochemical generator can be installed on a equipment susceptible to stresses such as bending or bidirectional twists.

    Selon une autre caractéristique de l'invention, chaque seconde partie est solidarisée à un matériau actif propre à être imprégné d'un électrolyte non-aqueux porté, par exemple, par une membrane logée dans l'enveloppe.According to another characteristic of the invention, every second part is secured to an active material suitable for being impregnated with a non-aqueous electrolyte carried, for example, by a membrane housed in the envelope.

    L'invention concerne également une batterie comportant au moins un générateur électrochimique du type de celui présenté ci-avant.The invention also relates to a battery comprising at least an electrochemical generator of the type presented above.

    L'invention est particulièrement bien adaptée à l'alimentation de composants) et/ou circuit(s) électronique(s), notamment lorsqu'il(s) sont (est) implanté(s) sur une carte à puce. The invention is particularly well suited to supplying components) and / or electronic circuit (s), in particular when they are (is) installed on a smart card.

    D'autres caractéristiques et avantages de l'invention apparaítront à l'examen de la description détaillée ci-après, et des dessins annexés, sur lesquels :

    • la figure 1 illustre de façon schématique, dans une vue de côté, un exemple de réalisation d'une batterie selon l'invention, et
    • la figure 2 est une vue en coupe transversale selon l'axe II-II de la figure 1.
    Other characteristics and advantages of the invention will appear on examining the detailed description below, and the attached drawings, in which:
    • FIG. 1 schematically illustrates, in a side view, an embodiment of a battery according to the invention, and
    • FIG. 2 is a cross-sectional view along the axis II-II of FIG. 1.

    Les dessins annexés pourront non seulement servir à compléter l'invention, mais aussi contribuer à sa définition, le cas échéant.The attached drawings may not only serve to complete the invention, but also contribute to its definition, if necessary.

    Sur les figures 1 et 2 se trouve illustré un exemple de réalisation d'une batterie 1 équipée d'un unique générateur électrochimique selon l'invention. Par conséquent, dans ce qui suit on assimilera la batterie 1 à son générateur électrochimique. Bien entendu, la batterie 1 pourrait comporter plusieurs générateurs électrochimiques montés en série ou en parallèle.In Figures 1 and 2 is illustrated an exemplary embodiment a battery 1 equipped with a single electrochemical generator according to the invention. Consequently, in what follows we will assimilate battery 1 to its electrochemical generator. Of course, the battery 1 could include several electrochemical cells mounted in series or in parallel.

    Dans l'exemple illustré sur la figure 1, la batterie 1 présente une partie principale 2 de forme rectangulaire, adaptée à son intégration dans un équipement de type carte à puce, et de laquelle fait saillie une patte de connexion monobloc 3. Par exemple, les longueur, largeur et épaisseur de la partie principale 2 sont respectivement de l'ordre de 35mm, 20mm et 0,5mm. Mais la partie principale 2 peut prendre de nombreuses autres formes et dimensions selon le lieu d'implantation de la batterie1.In the example illustrated in FIG. 1, the battery 1 has a main part 2 of rectangular shape, adapted to its integration in a smart card-type equipment, and from which protrudes a tab of monobloc connection 3. For example, the length, width and thickness of the main part 2 are respectively of the order of 35mm, 20mm and 0.5mm. But main part 2 can take many other forms and dimensions according to the location of the battery 1.

    Comme cela est mieux illustré sur la figure 2, la partie principale 2 de la batterie 1 comporte des moyens d'emballage 4 qui constituent une enveloppe définissant un espace interne 5. Cette enveloppe 4 est de préférence réalisée sous la forme d'une structure multicouches comportant au moins une couche de support 6 dont une première face (externe) est solidarisée à une couche externe de protection 7.As best illustrated in Figure 2, the main part 2 of the battery 1 comprises packaging means 4 which constitute a envelope defining an internal space 5. This envelope 4 is of preferably produced in the form of a multilayer structure comprising at least one support layer 6 of which a first (external) face is secured to an external protective layer 7.

    Par exemple, la couche de support 6 est réalisée dans un feuillard d'aluminium et la couche externe 7 est un vernis acrylique ou en polytéréphtalate d'éthylène (PET).For example, the support layer 6 is produced in a strip aluminum and the outer layer 7 is an acrylic varnish or polyethylene terephthalate (PET).

    Comme illustré, l'enveloppe 4 peut également comporter une couche interne 8 solidarisée à une seconde face (interne) de la couche de support 6. Cette couche interne 8 est par exemple constituée d'un matériau qui est au moins un polymère choisi parmi une polyoléfine telle que notamment un homopolymère de l'éthylène ou du propylène, un copolymère d'éthylène et de propylène ou un mélange de ceux-ci, voire même un polymère acrylique. Il pourra notamment s'agir de polypropylène, de polyéthylène ou d'un copolymère d'éthylène et de propylène.As illustrated, the envelope 4 may also include a internal layer 8 secured to a second (internal) face of the layer of support 6. This internal layer 8 is for example made of a material which is at least one polymer chosen from a polyolefin such as in particular a homopolymer of ethylene or propylene, a copolymer ethylene and propylene or a mixture thereof, or even a acrylic polymer. It may in particular be polypropylene, polyethylene or a copolymer of ethylene and propylene.

    Les matériaux précités, qui constituent l'enveloppe 4, sont adaptés à l'exemple d'utilisation de la batterie 1, qui requiert de la flexibilité (ou souplesse). Par conséquent, ils ne sont en aucune façon limitatifs et pourront différer, de façon radicale, selon les besoins.The aforementioned materials, which constitute the envelope 4, are suitable for the example of using battery 1, which requires flexibility (or flexibility). Consequently, they are in no way limiting and may differ, radically, as needed.

    L'espace interne 5, défini par l'enveloppe 4, loge tout d'abord une partie d'une électrode négative 9 et une partie d'une électrode positive 10. L'électrode négative 9 est constituée d'une plaque métallique 11 définissant un collecteur de courant comprenant une première partie 12, définissant une borne de connexion 13, prolongée par une seconde partie 14 solidarisée à un matériau actif 15. Par exemple, la plaque métallique 11 est réalisée en cuivre.The internal space 5, defined by the envelope 4, firstly accommodates a part of a negative electrode 9 and part of a positive electrode 10. The negative electrode 9 consists of a metal plate 11 defining a current collector comprising a first part 12, defining a connection terminal 13, extended by a second part 14 secured to an active material 15. For example, the metal plate 11 is made of copper.

    De même, l'électrode positive 10 est constituée d'une plaque métallique 16 définissant un collecteur de courant comprenant une première partie 17, définissant une borne de connexion 18, prolongée par une seconde partie 19 solidarisée à un matériau actif 20. Par exemple, la plaque métallique 16 est réalisée en aluminium.Similarly, the positive electrode 10 consists of a plate metallic 16 defining a current collector comprising a first part 17, defining a connection terminal 18, extended by a second part 19 secured to an active material 20. For example, the plate metal 16 is made of aluminum.

    Par exemple, dans le cas d'un générateur secondaire (ou rechargeable) au lithium, le matériau actif 15, logé dans la partie interne 5 de l'enveloppe 4 et solidarisé à la seconde partie 14 de l'électrode négative 9, est une pâte contenant un matériau carboné apte à insérer des atomes de lithium, tel que le LiC6, et le matériau actif 20, logé dans la partie interne 5 de l'enveloppe 4 et solidarisé à la seconde partie 19 de l'électrode positive 10, est une pâte contenant un oxyde métallique comprenant des atomes de lithium, tel que le LiCoO2.For example, in the case of a secondary (or rechargeable) lithium generator, the active material 15, housed in the internal part 5 of the casing 4 and secured to the second part 14 of the negative electrode 9, is a paste containing a carbon material capable of inserting lithium atoms, such as LiC 6 , and the active material 20, housed in the internal part 5 of the envelope 4 and secured to the second part 19 of the positive electrode 10, is a paste containing a metal oxide comprising lithium atoms, such as LiCoO 2 .

    L'enveloppe 4 loge également dans sa partie interne 5 une membrane 21 séparant les matériaux actifs 15 et 20 et placée au contact de ceux-ci de manière à les alimenter en électrolyte. Par exemple, dans l'exemple précité de générateur au lithium, la membrane 21 est pourvue d'un électrolyte constitué d'un sel de lithium, tel que LiPF6, en solution dans un solvant organique.The envelope 4 also houses in its internal part 5 a membrane 21 separating the active materials 15 and 20 and placed in contact with them so as to supply them with electrolyte. For example, in the aforementioned example of a lithium generator, the membrane 21 is provided with an electrolyte consisting of a lithium salt, such as LiPF 6 , in solution in an organic solvent.

    Au lieu de réaliser un générateur électrochimique secondaire (ou rechargeable) non-aqueux de type lithium-ion (Li-ion), on pourrait réaliser un générateur électrochimique primaire non-aqueux au lithium métal.Instead of making a secondary electrochemical generator (or rechargeable) non-aqueous type lithium-ion (Li-ion), one could realize a primary non-aqueous lithium metal electrochemical generator.

    Le générateur électrochimique 1 comporte également une couche d'isolation électrique 22 comportant deux faces externes, ici sensiblement parallèles entre-elles, et auxquelles sont respectivement solidarisées les portions des premières parties 12 et 17, des électrodes négative 9 et positive 10, qui définissent les bornes de connexion négative 13 et positive 18.The electrochemical generator 1 also has a layer of electrical insulation 22 comprising two external faces, here substantially parallel to each other, and to which are respectively secured the portions of the first parts 12 and 17, of the negative 9 and positive electrodes 10, which define the negative 13 and positive 18 connection terminals.

    Comme cela est matérialisé sur la figure 2 par la ligne en pointillés, la couche d'isolation 22 peut être éventuellement constituée de deux sous-couches 22A et 22B.As shown in Figure 2 by the dotted line, the insulating layer 22 can optionally consist of two sub-layers 22A and 22B.

    Par exemple, la couche d'isolation 22 (ou les sous-couches 22A et 22B) est (sont) réalisée(s) dans un matériau constitué d'au moins un polymère choisi parmi un polymère acrylique ou maléique et une polyoléfine telle que notamment un homopolymère de l'éthylène ou du propylène, un copolymère d'éthylène et de propylène ou un mélange de ceux-ci. Il pourra notamment s'agir de polypropylène, de polyéthylène ou d'un copolymère d'éthylène et de propylène modifiés par greffage de fonctions carboxyliques.For example, the insulation layer 22 (or the sublayers 22A and 22B) is (are) made of a material made of at least one polymer chosen from an acrylic or maleic polymer and a polyolefin such as in particular a homopolymer of ethylene or propylene, a copolymer of ethylene and propylene or a mixture thereof. He will be able to especially be polypropylene, polyethylene or a copolymer ethylene and propylene modified by grafting of carboxylic functions.

    Les bornes de connexion 13 et 18, ainsi placées de part et d'autre de la couche d'isolation électrique 22, définissent avec celle-ci la patte de connexion monobloc 3. Une partie « inférieure » de cette patte de connexion 3 est logée dans la partie interne 5 de l'enveloppe 4, tandis qu'une partie « supérieure » de ladite patte de connexion fait saillie hors de ladite enveloppe 4 de manière à permettre le raccordement des deux bornes de connexion 13 et 18 à des composants et/ou circuits électroniques implantés sur un équipement.The connection terminals 13 and 18, thus placed on either side of the electrical insulation layer 22, define therewith the tab of monobloc connection 3. A "lower" part of this connection lug 3 is housed in the internal part 5 of the casing 4, while a part "Upper" of said connecting tab protrudes from said enclosure 4 so as to allow the connection of the two terminals of connection 13 and 18 to implanted electronic components and / or circuits on equipment.

    Cette constitution monobloc renforce notablement la solidité des deux bornes de connexion et permet de simplifier sensiblement le procédé de fabrication du générateur électrochimique selon l'invention tout en réduisant les contraintes d'alignement des bornes de connexion. En outre, le fait de ne plus avoir qu'une unique traversée de l'enveloppe 4, contrairement aux deux traversées des générateurs de l'art antérieur, permet d'améliorer sensiblement l'étanchéité à l'intérieur de cette enveloppe.This one-piece constitution significantly strengthens the solidity of two connection terminals and makes it possible to significantly simplify the process for manufacturing the electrochemical generator according to the invention while reducing the alignment constraints of the connection terminals. In addition, the having only one crossing of envelope 4, unlike at the two crossings of the generators of the prior art, makes it possible to improve substantially the seal inside this envelope.

    Dans l'exemple illustré sur la figure 1, la patte de connexion 3 présente une faible extension latérale (définie par la direction perpendiculaire à l'axe II-II) par rapport à celle de la partie centrale 2. En d'autres termes, la portion de la première partie 12 ou 17, qui définit une borne de connexion 13 ou 18, est découpée. Mais, il pourrait en être autrement si cela s'avérait nécessaire. Par ailleurs, dans cet exemple les bornes de connexion 13 et 18 ne débordent pas de la couche d'isolation 22. Mais, on pourrait envisager que l'une au moins des bornes de connexion 13 et 18 déborde localement et très légèrement de la couche d'isolation 22. En outre, dans cet exemple les bornes de connexion 13 et 18 présentent une même extension longitudinale (définie par la direction parallèle à l'axe II-II). Mais, il pourrait en être autrement si cela s'avérait nécessaire.In the example illustrated in Figure 1, the connection lug 3 has a small lateral extension (defined by the perpendicular direction axis II-II) relative to that of the central part 2. In other words, the portion of the first part 12 or 17, which defines a connection terminal 13 or 18, is cut out. But, it could be otherwise if it turns out necessary. Furthermore, in this example the connection terminals 13 and 18 do not protrude from the insulation layer 22. But, one could consider that at least one of the connection terminals 13 and 18 projects locally and very slightly of the insulation layer 22. Furthermore, in this example the connection terminals 13 and 18 have the same longitudinal extension (defined by the direction parallel to the axis II-II). But, it could be otherwise if it proves necessary.

    Afin de renforcer l'isolation électrique et la protection des bornes de connexion 13 et 18, tout en renforçant l'étanchéité au niveau de la traversée de l'enveloppe 4, on peut également prévoir une ou deux couches auxiliaires d'isolation 23 interposée(s) entre l'enveloppe et la patte de connexion 3. Une seule couche auxiliaire 23 peut suffire, si elle est isolante électriquement. Dans ce cas elle peut en effet être réalisée sous la forme d'un manchon entourant complètement la patte de connexion 3 au niveau de la traversée. Lorsque l'on utilise deux couches auxiliaires, il n'est plus nécessaire, bien que cela reste préférable, qu'elles soient isolantes électriquement. Dans ce cas, elles peuvent par exemple se présenter sous la forme de parallélépipèdes (ou « patchs »).In order to reinforce the electrical insulation and the protection of the terminals connection 13 and 18, while strengthening the seal at the crossing of the casing 4, one or two auxiliary layers can also be provided of insulation 23 interposed between the casing and the connection tab 3. A a single auxiliary layer 23 may suffice, if it is electrically insulating. In this case it can indeed be produced in the form of a sleeve completely surrounding the connection lug 3 at the crossing. When two auxiliary layers are used, it is no longer necessary, that it remains preferable, that they are electrically insulating. In this case, they can for example be in the form of parallelepipeds (or "patches").

    Par exemple, la couche auxiliaire d'isolation 23 (ou les deux couches) est (sont) réalisée(s) dans un matériau adhérent constitué d'au moins un polymère choisi parmi un polymère acrylique ou maléique et une polyoléfine telle que notamment un homopolymère de l'éthylène ou du propylène, un copolymère d'éthylène et de propylène ou un mélange de ceux-ci. Il pourra notamment s'agir de polypropylène, de polyéthylène ou d'un copolymère d'éthylène et de propylène modifiés par greffage de fonctions carboxyliques.For example, the auxiliary insulation layer 23 (or both layers) is (are) made of an adhesive material made of at least less a polymer chosen from an acrylic or maleic polymer and a polyolefin such as in particular a homopolymer of ethylene or of propylene, a copolymer of ethylene and propylene or a mixture of them. It may in particular be polypropylene, polyethylene or of a copolymer of ethylene and propylene modified by grafting of carboxylic functions.

    Grâce à la superposition des deux bornes de connexion, avec interposition d'un matériau isolant, il est possible de réduire notablement, typiquement d'un facteur dix, le nombre de bornes de connexion cassées pendant les phases de fabrication et de test. Cela résulte principalement du fait que grâce à l'invention, les efforts de compression, mais surtout les efforts de torsion, subis par les bornes de connexion superposées, sont notablement réduits.Thanks to the superimposition of the two connection terminals, with interposition of an insulating material, it is possible to significantly reduce, typically by a factor of ten, the number of broken connection terminals during the manufacturing and testing phases. This is mainly due to fact that thanks to the invention, the compression forces, but especially the torsional forces, undergone by the superimposed connection terminals, are significantly reduced.

    De plus cela permet d'améliorer notablement la qualité de l'étanchéité. Il a en effet été constaté que l'eau pénétrait environ 50% moins vite dans le générateur électrochimique, permettant ainsi d'envisager une augmentation notable, proche du doublement, de la durée de vie dans des conditions normales d'utilisation.In addition, it significantly improves the quality of sealing. It was indeed found that the water penetrated about 50% less quickly in the electrochemical generator, thus making it possible to envisage a notable increase, close to doubling, of the life in normal conditions of use.

    En outre, le fait de ne plus avoir qu'une seule zone par laquelle circule le courant, au lieu de deux, permet de simplifier le contrôle de l'opération délicate que constitue le scellement de la traversée des connexions.In addition, having only one area through which current flows, instead of two, simplifies control of the delicate operation of sealing the crossing of connections.

    L'invention ne se limite pas aux modes de réalisation de générateur électrochimique et de batterie décrits ci-avant, seulement à titre d'exemple, mais elle englobe toutes les variantes que pourra envisager l'homme de l'art dans le cadre des revendications ci-après.The invention is not limited to embodiments of generator electrochemical and battery described above, only by way of example, but it encompasses all the variants that a person skilled in the art can envisage in the context of the claims below.

    Ainsi, on a décrit un générateur électrochimique de type secondaire (ou rechargeable), par exemple non-aqueux (Li-ion). Mais, l'invention n'est pas limitée à ce type de générateur électrochimique. Il pourrait notamment s'agir d'un autre type de générateur électrochimique secondaire à électrolyte non-aqueux et fonctionnant de préférence sans pression interne, voire même d'un générateur électrochimique primaire (comme par exemple une pile au lithium).Thus, a secondary type electrochemical generator has been described. (or rechargeable), for example non-aqueous (Li-ion). However, the invention is not not limited to this type of electrochemical generator. He could in particular be another type of secondary electrochemical generator with electrolyte non-aqueous and preferably works without internal pressure, or even even a primary electrochemical generator (such as a lithium battery).

    Par ailleurs, on a décrit un générateur électrochimique de forme parallélépipédique de faible épaisseur. Mais, l'invention n'est pas limitée à ce mode de réalisation de générateur électrochimique.Furthermore, an electrochemical generator of form has been described. thin parallelepiped. However, the invention is not limited to this embodiment of an electrochemical generator.

    De plus, on a décrit une batterie comportant un unique générateur électrochimique. Mais la batterie selon l'invention n'est pas limitée à ce cas particulier.In addition, a battery has been described comprising a single generator electrochemical. But the battery according to the invention is not limited to this case particular.

    Claims (17)

    Générateur électrochimique, caractérisé en ce qu'il comprend i) une électrode négative (9) et une électrode positive (10) comportant chacune un collecteur de courant (11,15) recouvert d'un matériau actif (15,20) et muni d'un prolongement définissant une borne de connexion, et ii) des moyens d'emballage (4) logeant à étanchéité lesdites électrodes (9,10), caractérisé en ce que lesdites bornes de connexion (13,18) sont placées de part et d'autre d'une couche d'isolation électrique (22) et définissent avec celle-ci une patte de connexion monobloc (3), et en ce que ladite patte de connexion monobloc (3) traverse ledit moyen d'emballage (4) de manière à saillir au moins en partie vers l'extérieur.Electrochemical generator, characterized in that it comprises i) a negative electrode (9) and a positive electrode (10) each comprising a current collector (11,15) covered with an active material (15,20) and provided with 'an extension defining a connection terminal, and ii) packaging means (4) sealingly housing said electrodes (9,10), characterized in that said connection terminals (13,18) are placed on the side and d 'other of an electrical insulation layer (22) and define therewith a one-piece connection tab (3), and in that said one-piece connection tab (3) passes through said packaging means (4) of so as to project at least partially outwards. Générateur selon la revendication 1, caractérisé en ce qu'il comprend une couche auxiliaire d'isolation (23) placée entre lesdits moyens d'emballage (4) et ladite patte de connexion (3).Generator according to claim 1, characterized in that it comprises an auxiliary insulation layer (23) placed between said packaging means (4) and said connection tab (3). Générateur selon la revendication 2, caractérisé en ce que ladite couche auxiliaire d'isolation (23) est constituée d'un matériau comprenant au moins un polymère choisi parmi un polymère acrylique, un polymère maléique et une polyoléfine, et en particulier un homopolymère de l'éthylène et/ou un homopolymère du propylène et/ou un copolymère d'éthylène et de propylène ou un mélange de ceux-ci.Generator according to claim 2, characterized in that said auxiliary insulation layer (23) consists of a material comprising at least one polymer chosen from an acrylic polymer, a maleic polymer and a polyolefin, and in particular a homopolymer of l ethylene and / or a propylene homopolymer and / or a copolymer of ethylene and propylene or a mixture thereof. Générateur selon l'une des revendications 1 à 3, caractérisé en ce que ladite couche d'isolation électrique (22) est constituée de deux sous-couches (22A,22B).Generator according to one of claims 1 to 3, characterized in that said electrical insulation layer (22) consists of two sub-layers (22A, 22B). Générateur selon l'une des revendications 1 à 4, caractérisé en ce que ladite couche d'isolation électrique (22) est constituée d'un matériau comprenant au moins un polymère choisi parmi un polymère acrylique, un polymère maléique et une polyoléfine, et en particulier un homopolymère de l'éthylène et/ou un homopolymère du propylène et/ou un copolymère d'éthylène et de propylène ou un mélange de ceux-ci. Generator according to one of claims 1 to 4, characterized in that said electrical insulation layer (22) consists of a material comprising at least one polymer chosen from an acrylic polymer, a maleic polymer and a polyolefin, and in in particular a homopolymer of ethylene and / or a homopolymer of propylene and / or a copolymer of ethylene and propylene or a mixture of these. Générateur selon l'une des revendications 1 à 5, caractérisé en ce que lesdits moyens d'emballage (4) sont constitués d'une structure multicouches comprenant au moins une couche de support (6) munie d'une première face solidarisée à une couche externe de protection (7).Generator according to one of claims 1 to 5, characterized in that said packaging means (4) consist of a multilayer structure comprising at least one support layer (6) provided with a first face secured to a layer external protection (7). Générateur selon la revendication 6, caractérisé en ce que ladite couche de support (6) est en aluminium.Generator according to claim 6, characterized in that said support layer (6) is made of aluminum. Générateur selon l'une des revendications 6 et 7, caractérisé en ce que ladite couche externe (7) est constituée d'un matériau choisi dans un groupe comprenant au moins un vernis de protection et une couche de polytéréphtalate d'éthylène (PET).Generator according to one of claims 6 and 7, characterized in that said outer layer (7) consists of a material selected from a group comprising at least one protective varnish and a layer of polyethylene terephthalate (PET). Générateur selon l'une des revendications 6 à 8, caractérisé en que ladite structure multicouches (4) comporte une couche interne (8) solidarisée à une seconde face de la couche de support (6).Generator according to one of claims 6 to 8, characterized in that said multilayer structure (4) has an internal layer (8) secured to a second face of the support layer (6). Générateur selon la revendication 9, caractérisé en ce que ladite couche interne (8) est constituée d'un matériau comprenant au moins un polymère choisi parmi un polymère acrylique et une polyoléfine, et en particulier un homopolymère de l'éthylène et/ou un homopolymère du propylène et/ou un copolymère d'éthylène et de propylène ou un mélange de ceux-ci.Generator according to claim 9, characterized in that said internal layer (8) consists of a material comprising at least one polymer chosen from an acrylic polymer and a polyolefin, and in particular an ethylene homopolymer and / or a homopolymer propylene and / or a copolymer of ethylene and propylene or a mixture thereof. Générateur selon l'une des revendications 1 à 10, caractérisé en que lesdits moyens d'emballage (4) sont flexibles.Generator according to one of claims 1 to 10, characterized in that said packaging means (4) are flexible. Générateur selon l'une des revendications 1 à 11, caractérisé en ce que chaque seconde partie (14,19) est solidarisée à un matériau actif (15,20) propre à être imprégné d'un électrolyte non-aqueux.Generator according to one of claims 1 to 11, characterized in that each second part (14,19) is secured to an active material (15,20) suitable for being impregnated with a non-aqueous electrolyte. Générateur selon la revendication 12, caractérisé en ce qu'il comprend une membrane (21) logée par lesdits moyens d'emballage (4), au contact de chaque matériau actif (15,20) et comprenant ledit électrolyte non-aqueux.Generator according to claim 12, characterized in that it comprises a membrane (21) housed by said packaging means (4), in contact with each active material (15,20) and comprising said non-aqueous electrolyte. Générateur selon l'une des revendications 1 à 13, caractérisé en ce qu'il est de type rechargeable.Generator according to one of claims 1 to 13, characterized in that it is of the rechargeable type. Batterie, caractérisée en ce qu'elle comprend au moins un générateur électrochimique selon l'une des revendications précédentes.Battery, characterized in that it comprises at least one electrochemical generator according to one of the preceding claims. Utilisation du générateur électrochimique et de la batterie selon l'une des revendications précédentes pour l'alimentation de composants et/ou circuits électroniques.Use of the electrochemical generator and the battery according to one previous claims for the supply of components and / or electronic circuits. Utilisation selon la revendication 16, caractérisée en ce que lesdits composants et/ou circuits électroniques sont implantés sur des cartes à puce.Use according to claim 16, characterized in that said electronic components and / or circuits are installed on smart cards.
    EP03292850A 2002-11-21 2003-11-17 Electrochemical generator with monobloc connector Expired - Fee Related EP1453119B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0214570A FR2847720B1 (en) 2002-11-21 2002-11-21 ELECTROCHEMICAL GENERATOR WITH MONOBLOC CONNECTOR
    FR0214570 2002-11-21

    Publications (2)

    Publication Number Publication Date
    EP1453119A1 true EP1453119A1 (en) 2004-09-01
    EP1453119B1 EP1453119B1 (en) 2006-06-14

    Family

    ID=32241472

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03292850A Expired - Fee Related EP1453119B1 (en) 2002-11-21 2003-11-17 Electrochemical generator with monobloc connector

    Country Status (4)

    Country Link
    US (1) US20040101749A1 (en)
    EP (1) EP1453119B1 (en)
    DE (1) DE60306100T2 (en)
    FR (1) FR2847720B1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR3109026A1 (en) 2020-04-07 2021-10-08 Saft Electrochemical element for battery and corresponding battery

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US8052666B2 (en) * 2004-12-30 2011-11-08 Kimberly-Clark Worldwide, Inc. Fastening system having elastomeric engaging elements and disposable absorbent article made therewith

    Citations (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPS6124144A (en) * 1984-07-13 1986-02-01 Toshiba Battery Co Ltd Thin battery
    JPS61126769A (en) * 1984-11-22 1986-06-14 Toshiba Battery Co Ltd Flat shaped cell
    JPS62105361A (en) * 1985-10-31 1987-05-15 Toshiba Corp Portable electronic device
    US5580678A (en) * 1992-11-27 1996-12-03 Gould Electronics Inc. Adhesive sealed solid electrolyte cell housed within a ceramic frame and the method for producing it
    JPH09288997A (en) * 1996-04-23 1997-11-04 Sumitomo Electric Ind Ltd Sealing bag for nonaqueous electrolyte battery
    EP0834934A1 (en) * 1996-04-23 1998-04-08 Sumitomo Electric Industries, Ltd. Non-aqueous electrolyte cell
    US6080508A (en) * 1998-03-06 2000-06-27 Electrofuel Inc. Packaging assembly for a lithium battery
    JP2001102016A (en) * 1999-07-27 2001-04-13 Sumitomo Electric Ind Ltd Lead wire for non-aqueous electrolyte cell
    US6387566B1 (en) * 1999-03-31 2002-05-14 Samsung Sdi Co., Ltd. Battery with laminated insulator/metal/insulator case
    US6387567B1 (en) * 1999-04-16 2002-05-14 Samsung Sdi Co., Ltd. Secondary battery

    Family Cites Families (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US6541155B2 (en) * 2000-12-21 2003-04-01 Valence Technology, Inc. Bicell battery apparatus
    US6854657B2 (en) * 2001-11-28 2005-02-15 General Instrument Corporation Dual battery configuration and method of using the same to provide a long-term power solution in a programmable smart card

    Patent Citations (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPS6124144A (en) * 1984-07-13 1986-02-01 Toshiba Battery Co Ltd Thin battery
    JPS61126769A (en) * 1984-11-22 1986-06-14 Toshiba Battery Co Ltd Flat shaped cell
    JPS62105361A (en) * 1985-10-31 1987-05-15 Toshiba Corp Portable electronic device
    US5580678A (en) * 1992-11-27 1996-12-03 Gould Electronics Inc. Adhesive sealed solid electrolyte cell housed within a ceramic frame and the method for producing it
    JPH09288997A (en) * 1996-04-23 1997-11-04 Sumitomo Electric Ind Ltd Sealing bag for nonaqueous electrolyte battery
    EP0834934A1 (en) * 1996-04-23 1998-04-08 Sumitomo Electric Industries, Ltd. Non-aqueous electrolyte cell
    US6080508A (en) * 1998-03-06 2000-06-27 Electrofuel Inc. Packaging assembly for a lithium battery
    US6387566B1 (en) * 1999-03-31 2002-05-14 Samsung Sdi Co., Ltd. Battery with laminated insulator/metal/insulator case
    US6387567B1 (en) * 1999-04-16 2002-05-14 Samsung Sdi Co., Ltd. Secondary battery
    JP2001102016A (en) * 1999-07-27 2001-04-13 Sumitomo Electric Ind Ltd Lead wire for non-aqueous electrolyte cell

    Non-Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Title
    PATENT ABSTRACTS OF JAPAN vol. 010, no. 175 (E - 413) 20 June 1986 (1986-06-20) *
    PATENT ABSTRACTS OF JAPAN vol. 010, no. 317 (E - 449) 28 October 1986 (1986-10-28) *
    PATENT ABSTRACTS OF JAPAN vol. 011, no. 312 (E - 548) 12 October 1987 (1987-10-12) *
    PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27) *
    PATENT ABSTRACTS OF JAPAN vol. 2000, no. 21 3 August 2001 (2001-08-03) *

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR3109026A1 (en) 2020-04-07 2021-10-08 Saft Electrochemical element for battery and corresponding battery
    WO2021204842A1 (en) 2020-04-07 2021-10-14 Saft Electrochemical element for a battery and corresponding battery

    Also Published As

    Publication number Publication date
    DE60306100D1 (en) 2006-07-27
    EP1453119B1 (en) 2006-06-14
    FR2847720B1 (en) 2005-05-20
    DE60306100T2 (en) 2006-11-30
    US20040101749A1 (en) 2004-05-27
    FR2847720A1 (en) 2004-05-28

    Similar Documents

    Publication Publication Date Title
    EP2842185B1 (en) Bushing forming a terminal for a lithium storage battery and related storage battery
    EP3076453B1 (en) Electrochemical device, such as a microbattery or an electrochromic system, covered with an encapsulation layer comprising a barrier film and an adhesive film, and method for manufacturing same
    EP0814529A1 (en) Thin card containing flat accumulator and connecting devices
    WO2014167504A1 (en) Lithium electrochemical storage battery having a casing providing improved thermal dissipation, associated battery pack and production processes
    FR2504735A1 (en) CONTACT DEVICE FOR GALVANIC BATTERY
    CA2259769A1 (en) Thin type sealed cell and producing method thereof
    EP2093820B1 (en) Electric connection for current accumulator
    FR2762934A1 (en) Wound power cell electrode production
    EP0913874A1 (en) Sealed storage battery with multilayered jacket
    FR2489603A1 (en) ELEMENT ELECTROCHEMICAL ACCUMULATOR
    EP2337053B1 (en) Battery cut out with active thermomechanical element
    EP2557579B1 (en) Supercapacitor cell and supercapacitor module including a plurality of these cells.
    EP2255368B1 (en) Multiple-track supercapacitor
    EP1453119B1 (en) Electrochemical generator with monobloc connector
    EP2541642B1 (en) Safety device for sealed battery
    FR2692077A1 (en) Accumulators with bipolar electrodes.
    EP3985769A1 (en) Battery module with stack of flexible packaged accumulators housed in fixed supports between them by snapping or clipping and supporting terminals in pressure contact with the accumulator terminals.
    FR2824667A1 (en) INTERNAL CONNECTION FOR HIGH POWER ELECTROCHEMICAL GENERATOR
    EP3482432B1 (en) Metal ion electrochemical accumulator having high capacity and whose flexibility allows a high conformability
    FR2566587A1 (en) NON-AQUEOUS ELECTROLYTE CELL
    CH716260A2 (en) Cellular battery.
    WO2019092375A2 (en) Electrochemical accumulator having a specific bipolar architecture
    JP4129965B2 (en) Non-aqueous electrolyte battery
    EP3510652A1 (en) Feedthrough forming a terminal for an electrochemical metal-ion battery and associated battery
    FR3129781A1 (en) Battery module with a stack of accumulators in flexible packaging housed in supports fixed to each other by connection by complementarity of shapes and supporting busbars nested in each other during the connection.

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

    AX Request for extension of the european patent

    Extension state: AL LT LV MK

    17P Request for examination filed

    Effective date: 20050111

    RAP1 Party data changed (applicant data changed or rights of an application transferred)

    Owner name: SAFT FINANCE S.AE.R.L.

    AKX Designation fees paid

    Designated state(s): DE FR GB

    17Q First examination report despatched

    Effective date: 20050428

    RBV Designated contracting states (corrected)

    Designated state(s): DE FR GB

    GRAP Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOSNIGR1

    GRAS Grant fee paid

    Free format text: ORIGINAL CODE: EPIDOSNIGR3

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): DE FR GB

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    REF Corresponds to:

    Ref document number: 60306100

    Country of ref document: DE

    Date of ref document: 20060727

    Kind code of ref document: P

    GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

    Effective date: 20060816

    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    26N No opposition filed

    Effective date: 20070315

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 13

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 14

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R082

    Ref document number: 60306100

    Country of ref document: DE

    Representative=s name: KLUNKER IP PATENTANWAELTE PARTG MBB, DE

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 15

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 16

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DE

    Payment date: 20181129

    Year of fee payment: 16

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: GB

    Payment date: 20181130

    Year of fee payment: 16

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: FR

    Payment date: 20191104

    Year of fee payment: 17

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 60306100

    Country of ref document: DE

    GBPC Gb: european patent ceased through non-payment of renewal fee

    Effective date: 20191117

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: GB

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20191117

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20200603

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20201130